Fig. 5: Lumbar spine-like scaffold design and cell culture.
From: A hierarchically ordered compacted coil scaffold for tissue regeneration

a Schematic of the lumbar spine. b The lumbar spine-like scaffold designed by G code with a speed of 200mm/min. c, d Microscopic images of a lumbar spine-like scaffold. e–h SEM images of the lumbar spine-like scaffold before cell seeding (e, f) and after cell culture for 7 days (g, h). i–p Epifluorescence microscopy images of the lumbar spine-like scaffold after cell culture on day 1 (i, j), day 3 (k, l), day 5 (m, n) and day 7 (o, p).